Integrate Authentication modules.

Updated code for sql that should not use parameters
   to expand :table_name in table name usage,
   since Eiffel Store will use quote,
   and MySQL does not like them.

Merge remote-tracking branch 'jvelilla/roc_auth_v1' into ewf_v1_mod_env

Conflicts:
	examples/demo/demo-safe.ecf
	modules/auth/cms_authentication_module.e

examples/demo/site/modules/oauth20/scripts/oauth2_consumers.sql

@@ -0,0 +1,18 @@
+
+CREATE TABLE oauth2_consumers(
+   `cid` INTEGER PRIMARY KEY NOT NULL CHECK(`cid`>=0),
+   `name` VARCHAR(255) NOT NULL,
+   `api_secret` TEXT  NOT NULL,
+   `api_key` TEXT NOT NULL,
+   `scope` VARCHAR (100) NOT NULL,
+   `protected_resource_url` VARCHAR (255) NOT NULL,
+   `callback_name` VARCHAR(255) NOT NULL,
+   `extractor` VARCHAR(50) NOT NULL,
+   `authorize_url` VARCHAR (255) NOT NULL,
+   `endpoint`  VARCHAR (255) NOT NULL,
+   CONSTRAINT `cid`
+    UNIQUE(`cid`),
+   CONSTRAINT `name`
+    UNIQUE(`name`)
+   );
+

examples/demo/site/modules/oauth20/scripts/oauth2_consumers_initialize.sql

@@ -0,0 +1,7 @@
+	-- Change the values TO_COMPLETE based on your API.
+	-- API SECTET KEY AND API PUBLIC KEY 
+INSERT INTO oauth2_consumers (name, api_secret, api_key, scope, protected_resource_url, callback_name, extractor, authorize_url, endpoint) 
+VALUES ('google', 'TO-COMPLETE', 'TO-COMPLETE', 'email', 'https://www.googleapis.com/plus/v1/people/me', 'callback_google', 'json','https://accounts.google.com/o/oauth2/auth?response_type=code&client_id=$CLIENT_ID&redirect_uri=$REDIRECT_URI','https://accounts.google.com/o/oauth2/token');
+
+INSERT INTO oauth2_consumers (name, api_secret, api_key, scope, protected_resource_url, callback_name, extractor, authorize_url, endpoint ) 
+VALUES ('facebook', 'TO-COMPLETE', 'TO-COMPLETE', 'email', 'https://graph.facebook.com/me', 'callback_facebook','text','https://www.facebook.com/dialog/oauth?response_type=code&client_id=$CLIENT_ID&redirect_uri=$REDIRECT_URI','https://graph.facebook.com/oauth/access_token');

examples/demo/site/modules/oauth20/scripts/oauth2_table.sql.tpl

@@ -0,0 +1,10 @@
+
+CREATE TABLE $table_name (
+   `uid` INTEGER PRIMARY KEY NOT NULL CHECK(`uid`>=0),
+   `access_token` TEXT  NOT NULL,
+   `created` DATETIME NOT NULL,
+   `details` TEXT NOT NULL,
+   CONSTRAINT `uid`
+    UNIQUE(`uid`)
+   );
+

examples/demo/site/modules/oauth20/templates/block_login.tpl

@@ -0,0 +1,7 @@
+ 	<div class="primary-tabs">
+ 		<div>
+			{foreach item="item" from="$oauth_consumers"}
+				<a href="{$site_url/}account/login-with-oauth/{$item/}">Login with {$item/}</a><br>
+			{/foreach}	
+		</div>    	
+	</div>